Kaya is a changeling that is highly skilled in martial arts and wields a heavy chain. She appears to have been contracted out by the Silver Coin merchants guild to find prospective items for market. Kaya is also seeking to collect the bounty on Inwe, and in doing so was able to acquire the silver dragon scale after seducing Martha.
Kaya can take any form and the party does not know her real name or her real form. When seducing Martha she took the form of a small, blonde elf maiden. She has also been seen taking on the form of other human females, mostly strippers.